Acoustics is the study of sound and its propagation. Acoustic insulation mainly consists of preventing the propagation of sound waves by erecting a “dam”. This is also the difference with sound proofing, where energy is extracted from the sound by appropriate measures. The classic element of acoustic insulation is a simple and homogeneous wall between two rooms: an acoustic insulation wall. One room contains the sound source and the other room must be protected from noise pollution. The most important parameter for sound insulation is the sound insulation dimension R. This indicates the amount of sound that can be absorbed by a construction element. The sound attenuation index is given in decibels.
Effective acoustic felts or foams are often used. A distinction is made between natural and synthetic insulation materials. At PREFORM, we use the natural insulating material plaster foam.
